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US 2020/0206697 A1Published application
Cha zeolite membrane and method of preparing the same
AssigneeKorea University Research and Business Foundation
InventorsJungkyu CHOI, Kwan Young LEE, Sung-Won HONG
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Abstract
Disclosed are a CHA zeolite membrane and a method of preparing the same, and more particularly, a CHA zeolite membrane having high capacity to separate CO2/N2 and CO2/CH4 even under wet conditions using a membrane produced using a synthetic precursor having a controlled ratio of Si and Al, a method of preparing the same, and a method of capturing and removing carbon dioxide using the membrane.
Claims17
A method of preparing a CHA zeolite membrane comprising:
- adding a support including a CHA particle seed layer deposited thereon into a synthetic solution for growing zeolite containing an organic structure-directing agent and Si and Al sources;
- and
- performing hydrothermal synthesis, wherein a molar ratio of Si/Al in the synthetic solution for growing zeolite is 5 or more.
A method of preparing a CHA zeolite membrane comprising:
- adding a support including a CHA particle seed layer deposited thereon into a synthetic solution for growing zeolite containing an organic structure-directing agent and a Si source, without containing an Al source;
- and
- performing hydrothermal synthesis.
Dependencies are inferred from the claim text.